Project Description

The Greater Toronto Airport Authority anticipates more than 50 million annual passengers will flood the airport’s gates by the year 2020, a finding that led them to initiate a 10-year, multi-phase $4.4 billion redevelopment program which began with the construction of a new Terminal 1.

Project Requirements

The 1,300,000 sq. ft. facility, completed in December 2005, is made up of three adjoining buildings roofed by three roofing contractors over a four-year period. The terminal’s massive U-shaped vault roof has more than 33 skylights. Placing a strong, adaptable roofing membrane around the skylights was critical to the project’s success.

The architects needed a smooth material that, from a distance, would create an impression of an immaculate, thin grey slab segmented by ribbons of skylights – and yet be flexible enough to follow the integrated parapets and gutters in the roof lines. To find the right fit, architects searched the City of Toronto, testing membranes that had survived its harsh winters and were still performing. They wanted a guaranteed thickness of the membrane and Sika Sarnafil was the only manufacturer able to meet that requirement.

Sika Solutions

Sarnafil® S 327 mechanically fastened system was installed on the terminal’s massive U-shaped vault roofs with more than 33 skylights. It featured a 1.5 mm  thick Sarnafil® membrane in custom color cement grey, along with a Sarnavap® vapor retarder and two layers of Sarnatherm® insulation.

It is a strong, adaptable, highly qualified roofing membrane system which from a distance, would create an impression of an immaculate, thin grey slab segmented by ribbons of skylights – and yet be flexible enough to follow the integrated parapets and gutters in the roof lines. This has met the requirements of the owner and the architects.

Sika Products

In addition the following Sika products were used in the project

  • Sarnafil® S 327
  • Sarnavap®
  • Sarnatherm®

Check out more information about Sika products in the Canadian market

Project Participants

Owner: Greater Toronto Airport Authority
Architect: Airport Architects Canada, a Joint Venture of Adamson
Associates, Mississauga, ON; Moshe Safdie & Associates, Somerville, MA; Skidmore Owings & Merrill LLP, New York, NY
Roofing and Waterproofing Contractor: Bothwell-Accurate Co. Ltd.
Toronto, ON; Dean-Chandler Roofing Ltd., Scarborough, ON; Flynn Canada Ltd., Mississauga, ON